SRAJENDRAN_at_nlfs.com wrote:
> > Hello:> > I have an identical query that has similar explain plan on both Prod and
Dev
> environment, only difference being that certain indexes are performing> unique scan on Prod and Range scan on Dev.> Can you cast some light on how this can be matched and under what
conditions
> this discrepancy might occur.> > Thank you,> > Srini>

The index being declared UNIQUE in one case and not in the other seems
to me the most likely reason.

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